New to cpu overclocking, and ended up getting system diagnostic straight away

[Rollipeikko]

I recently got myself i7 8700k along with Asus Rog Strix 370-e (i liked the silver/black coloring of it) and H115i, and had EVGA's 850w g2 as psu and Msi 1080 as my gpu. Had been reading abt overclocking for a while, and figured id give it a go. I followed the guide on 

 and figured id go straight for 4.9 with 1.35v, and my computer froze before getting to windows, so i went to drop it down to 4.8, and again, it froze. Next time i booted, i got error that there was something wrong with my pc and its performing diagonstics of it, and it got stuck, i dont remember exactly what it said but too scared of retrying, restarted once more and resetted all the settings, got it again, but this time it didnt freeze and continued to windows's own diagnostics panel, where it wanted me to restart, which did work. 

 

So the question is, why it did that, did i just get super unlucky with my processor that it cant go over stock or am i doing something rly wrong

 

Thanks in advance

 

 

[UrFather-KsAngelFireZz]

lending your thread.... hope there are oc sifu's here to enlighten both of us. im overclocking my i3 8350k, wanting to go 4.8ghz. should i push 4.8 straight away or go up step by step? whats the best voltage for 4.8ghz i3 8350k? im using aorus z370 ultra gaming mobo, ddr4 3000mhz 16gb rams and a 550w fully modular power supply

[YakityYak]

I think thats a bad thing or maybe not it could be good i would wait tell someone more experienced with this topic to answer dont quote me as being right just yet 

[Plank]

15 hours ago, Rollipeikko said:

I recently got myself i7 8700k along with Asus Rog Strix 370-e (i liked the silver/black coloring of it) and H115i, and had EVGA's 850w g2 as psu and Msi 1080 as my gpu. Had been reading abt overclocking for a while, and figured id give it a go. I followed the guide on 

 and figured id go straight for 4.9 with 1.35v, and my computer froze before getting to windows, so i went to drop it down to 4.8, and again, it froze. Next time i booted, i got error that there was something wrong with my pc and its performing diagonstics of it, and it got stuck, i dont remember exactly what it said but too scared of retrying, restarted once more and resetted all the settings, got it again, but this time it didnt freeze and continued to windows's own diagnostics panel, where it wanted me to restart, which did work. 

 

So the question is, why it did that, did i just get super unlucky with my processor that it cant go over stock or am i doing something rly wrong

 

Thanks in advance

 

 

Had the same with my 8700k on z370 Taichi. My cpu is delidded and I can’t oc all core over 4,7ghz even tho the temps don’t even reach 60 degrees on load. It just freezes at the circle when win10 should boot, right? I figured that you CAN use the intel utility tool to oc, but yea i don’t know if you want to.

[N1tro199]

My first suggestion would be to return to stock speed and voltage and make sure it boots again. Then start creeping up the speed until you hit instability at this point you can either reduce speed until it's stable again or up the voltage slightly until it's stable again. "Rinse and repeat" Until you hit the unstable point where any voltage doesn't work. That's the limit of your chip. Reduce the speed to stable point and try to reduce voltage to lowest stable point. 

 

Guides are nice as a reference but you can't be certain that your chip will work the same as the guide. One chip can go up to 5ghz stable while another one won't even reach 4.5ghz at any given voltage.

 

Good luck!